How to Dynamically Rotate a Player Image to Face the Mouse Cursor in 2D Shooting Games?

How to Rotate an Image(Player) to the Mouse Direction?

When creating 2D shooting games, it's essential to enable the player to aim in the direction of the mouse cursor. However, finding a solution to this can be challenging.

Problem Description

The player image (Player_1) needs to rotate dynamically based on the mouse position to enhance the aiming experience.

Solution

To accomplish this, we need to compute the angle between the player's position and the mouse cursor position. This is achieved as follows:

<code class="python">import pygame, sys, os
import math

# ... (rest of the code remains the same)

def game_loop():
    while True:
        events()

        mx, my = pygame.mouse.get_pos() # Get the mouse position
        player_rect = Player_1.get_rect(topleft=(P_X,P_Y)) # Get the player's rectangle

        dx, dy = mx - player_rect.centerx, player_rect.centery - my # Calculate the vector from the player to the mouse
        angle = math.degrees(math.atan2(-dy, dx)) - correction_angle # Compute the angle of the vector

        rot_image = pygame.transform.rotate(Player_1, angle) # Rotate the player image by the calculated angle
        rot_image_rect = rot_image.get_rect(center=player_rect.center) # Get the rotated image's rectangle

        DS.fill(White)
        DS.blit(rot_image, rot_image_rect) # Blit the rotated player image
        pygame.display.flip()</code>

The correction_angle is a constant that depends on the initial orientation of the player sprite. Common values are:

• 0 degrees: Sprite is looking to the right.
• 90 degrees: Sprite is looking up.
• 180 degrees: Sprite is looking to the left.
• 270 degrees: Sprite is looking down.

This method allows the player image to rotate and aim accurately towards the mouse cursor position, enhancing the gameplay experience.

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